package pedido.maryjane.web.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import pedido.maryjane.util.HibernateUtil;

public class ConexaoHibernateFilter implements Filter {

	private SessionFactory sessionFactory;
		
	@Override
	public void destroy() {
		
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		try {
				this.sessionFactory.getCurrentSession().beginTransaction();
				chain.doFilter(request, response);
				this.sessionFactory.getCurrentSession().getTransaction().commit();
				this.sessionFactory.getCurrentSession().close();
		} catch (Throwable ex) {
			try {
					if (this.sessionFactory.getCurrentSession().getTransaction().isActive()) {
						this.sessionFactory.getCurrentSession().getTransaction().rollback();
					}
			} catch (Throwable t) {
				t.printStackTrace();
			}
			throw new ServletException(ex);
		}
	}

	@Override
	public void init(FilterConfig config) throws ServletException {
		this.sessionFactory = HibernateUtil.getSessionFactory();
	}

}
